<?php

/* * 
 *      @author jumark
 *      @uses $wxApi = new WxApi();
 *      @package 微信API接口
 * 
 */

namespace Org\Net;

class WxApi {

    const appId = "";
    const appSecret = "";
    const mchid = ""; //商户号
    const privatekey = ""; //私钥

    public $parameters = array();

    public function __construct() {
        
    }

    /**
     *  微信提交API方法，返回微信指定JSON
     */
    public function wxHttpsRequest($url, $data = null) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!emptyempty($data)) {
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }

    /*
     *  微信带证书提交数据 - 微信红包使用
     */

    public function wxHttpsRequestPem($url, $vars, $second = 30, $aHeader = array()) {
        $ch = curl_init();
        //超时时间
        curl_setopt($ch, CURLOPT_TIMEOUT, $second);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        //这里设置代理，如果有的话
        //curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
        //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        //以下两种方式需选择一种
        //第一种方法，cert 与 key 分别属于两个.pem文件
        //默认格式为PEM，可以注释
        curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM');
        curl_setopt($ch, CURLOPT_SSLCERT, getcwd() . '/apiclient_cert.pem');
        //默认格式为PEM，可以注释
        curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM');
        curl_setopt($ch, CURLOPT_SSLKEY, getcwd() . '/apiclient_key.pem');
        curl_setopt($ch, CURLOPT_CAINFO, 'PEM');
        curl_setopt($ch, CURLOPT_CAINFO, getcwd() . '/rootca.pem');
        //第二种方式，两个文件合成一个.pem文件
        //curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
        if (count($aHeader) >= 1) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
        }
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $vars);
        $data = curl_exec($ch);
        if ($data) {
            curl_close($ch);
            return $data;
        } else {
            $error = curl_errno($ch);
            echo "call faild, errorCode:$error\n";
            curl_close($ch);
            return false;
        }
    }

    /*
     *  微信获取AccessToken 返回指定微信公众号的at信息
     */

    public function wxAccessToken($appId = NULL, $appSecret = NULL) {
        $appId = is_null($appId) ? self::appId : $appId;
        $appSecret = is_null($appSecret) ? self::appSecret : $appSecret;
        //echo $appId,$appSecret;
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $appId . "&secret=" . $appSecret;
        $result = $this->wxHttpsRequest($url);
        //print_r($result);
        $jsoninfo = json_decode($result, true);
        $access_token = $jsoninfo["access_token"];
        return $access_token;
    }

    /*
     *  微信通过OPENID获取用户信息，返回数组
     */

    public function wxGetUser($openId) {
        $wxAccessToken = $this->wxAccessToken();
        $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=" . $wxAccessToken . "&openid=" . $openId . "&lang=zh_CN";
        $result = $this->wxHttpsRequest($url);
        $jsoninfo = json_decode($result, true);
        return $jsoninfo;
    }

    /*
     *  微信通过指定模板信息发送给指定用户，发送完成后返回指定JSON数据
     */

    public function wxSendTemplate($jsonData) {
        $wxAccessToken = $this->wxAccessToken();
        $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" . $wxAccessToken;
        $result = $this->wxHttpsRequest($url, $jsonData);
        return $result;
    }

    /*
     *      发送自定义的模板消息
     */

    public function wxSetSend($touser, $template_id, $url, $data, $topcolor = '#7B68EE') {
        $template = array(
            'touser' => $touser,
            'template_id' => $template_id,
            'url' => $url,
            'topcolor' => $topcolor,
            'data' => $data
        );
        $jsonData = json_encode($template);
        $result = $this->wxSendTemplate($jsonData);
        return $result;
    }

    /*
     *  微信设置OAUTH跳转URL，返回字符串信息 - SCOPE = snsapi_base //验证时不返回确认页面，只能获取OPENID
     */

    public function wxOauthBase($redirectUrl, $state = "", $appId = NULL) {
        $appId = is_null($appId) ? self::appId : $appId;
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" . $appId . "&redirect_uri=" . $redirectUrl . "&response_type=code&scope=snsapi_base&state=" . $state . "#wechat_redirect";
        return $url;
    }

    /*
     *  微信设置OAUTH跳转URL，返回字符串信息 - SCOPE = snsapi_userinfo //获取用户完整信息
     */

    public function wxOauthUserinfo($redirectUrl, $state = "", $appId = NULL) {
        $appId = is_null($appId) ? self::appId : $appId;
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" . $appId . "&redirect_uri=" . $redirectUrl . "&response_type=code&scope=snsapi_userinfo&state=" . $state . "#wechat_redirect";
        return $url;
    }

    /*
     *  微信OAUTH跳转指定URL
     */

    public function wxHeader($url) {
        header("location:" . $url);
    }

    /*
     *  微信通过OAUTH返回页面中获取AT信息
     */

    public function wxOauthAccessToken($code, $appId = NULL, $appSecret = NULL) {
        $appId = is_null($appId) ? self::appId : $appId;
        $appSecret = is_null($appSecret) ? self::appSecret : $appSecret;
        $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . $appId . "&secret=" . $appSecret . "&code=" . $code . "&grant_type=authorization_code";
        $result = $this->wxHttpsRequest($url);
        //print_r($result);
        $jsoninfo = json_decode($result, true);
        //$access_token     = $jsoninfo["access_token"];
        return $jsoninfo;
    }

    /*
     *  微信通过OAUTH的Access_Token的信息获取当前用户信息 // 只执行在snsapi_userinfo模式运行
     */

    public function wxOauthUser($OauthAT, $openId) {
        $url = "https://api.weixin.qq.com/sns/userinfo?access_token=" . $OauthAT . "&openid=" . $openId . "&lang=zh_CN";
        $result = $this->wxHttpsRequest($url);
        $jsoninfo = json_decode($result, true);
        return $jsoninfo;
    }

    /*
     *      生成随机字符串 - 最长为32位字符串
     */

    public function wxNonceStr($length = 16, $type = FALSE) {
        $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        $str = "";
        for ($i = 0; $i < $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }
        if ($type == TRUE) {
            return strtoupper(md5(time() . $str));
        } else {
            return $str;
        }
    }

    /*
     *      微信商户订单号 - 最长28位字符串
     */

    public function wxMchBillno($mchid = NULL) {
        if (is_null($mchid)) {
            if (self::mchid == "" || is_null(self::mchid)) {
                $mchid = time();
            } else {
                $mchid = self::mchid;
            }
        } else {
            $mchid = substr(addslashes($mchid), 0, 10);
        }
        return date("Ymd", time()) . time() . $mchid;
    }

    /*
     *      微信格式化数组变成参数格式 - 支持url加密
     */

    public function wxSetParam($parameters) {
        if (is_array($parameters) && !emptyempty($parameters)) {
            $this->parameters = $parameters;
            return $this->parameters;
        } else {
            return array();
        }
    }

    /*
     *      微信格式化数组变成参数格式 - 支持url加密
     */

    public function wxFormatArray($parameters = NULL, $urlencode = FALSE) {
        if (is_null($parameters)) {
            $parameters = $this->parameters;
        }
        $restr = ""; //初始化空
        ksort($parameters); //排序参数
        foreach ($parameters as $k => $v) {//循环定制参数
            if (null != $v && "null" != $v && "sign" != $k) {
                if ($urlencode) {//如果参数需要增加URL加密就增加，不需要则不需要
                    $v = urlencode($v);
                }
                $restr .= $k . "=" . $v . "&"; //返回完整字符串
            }
        }
        if (strlen($restr) > 0) {//如果存在数据则将最后“&”删除
            $restr = substr($restr, 0, strlen($restr) - 1);
        }
        return $restr; //返回字符串
    }

    /*
     *      微信MD5签名生成器 - 需要将参数数组转化成为字符串[wxFormatArray方法]
     */

    public function wxMd5Sign($content, $privatekey) {
        try {
            if (is_null($key)) {
                throw new Exception("财付通签名key不能为空！");
            }
            if (is_null($content)) {
                throw new Exception("财付通签名内容不能为空");
            }
            $signStr = $content . "&key=" . $key;
            return strtoupper(md5($signStr));
        } catch (Exception $e) {
            die($e->getMessage());
        }
    }

    /*
     *      微信Sha1签名生成器 - 需要将参数数组转化成为字符串[wxFormatArray方法]
     */

    public function wxSha1Sign($content, $privatekey) {
        try {
            if (is_null($key)) {
                throw new Exception("财付通签名key不能为空！");
            }
            if (is_null($content)) {
                throw new Exception("财付通签名内容不能为空");
            }
            $signStr = $content . "&key=" . $key;
            return strtoupper(sha1($signStr));
        } catch (Exception $e) {
            die($e->getMessage());
        }
    }

    /*
     *      将数组解析XML - 微信红包接口
     */

    public function wxArrayToXml($parameters = NULL) {
        if (is_null($parameters)) {
            $parameters = $this->parameters;
        }
        if (!is_array($parameters) || emptyempty($parameters)) {
            die("参数不为数组无法解析");
        }
        $xml = "<xml>";
        foreach ($arr as $key => $val) {
            if (is_numeric($val)) {
                $xml.="<" . $key . ">" . $val . "</" . $key . ">";
            }
            else
                $xml.="<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
        }
        $xml.="</xml>";
        return $xml;
    }

}